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"Are
you interested to know how
recordable discs are manufactured ?
Let's
begin ..... "
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Chemical Dye Preparation
Stage
Organic chemical dye is mixed with the right formula.
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PC Material Preparation Stage
PC (polycarbonate) resins are heated for drying & dehumidifying
before the molding process.
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Disc Molding
PC resins are molded into disc substrate by the
molding machine.
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Downstream
process begins here .....
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Dye Coating & Edge Cleaning
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Chemical dye are coated on the disc substrate.
Dye is washed away from the edge of the disc.
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ID Marking
Serial ID is printed onto the hub of the disc.
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Dye scanning
Discs are scanned to ensure that the dye meets specification.
Defective discs are rejected.
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Silver Sputtering Process
Pure silver layer is sputtered on top of the chemical
dye.
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Lacquerring Process
Lacquer is dispensed to protect the silver layer. |
UV Curing
Lacquer is dried instantly by UV. |
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Finishing Scanning
Finished discs are scanned to ensure perfect silver and lacquer
layers. Cosmetically imperfect & defective discs are rejected
& group together.
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CD-R Burning Test
CD-Rs are written by the latest commercial drives
to ensure its compatibility and for further analysis by professional
test equipment.
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Post-burning Analysis
After burning, CD-Rs are analysed by professional test equipment
to ensure its compliance with Orange Book standard.
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Printing Process
OEM discs are silk-screen printed.
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Low
Cost and Convenient
One CD-R disc can record 700MB of data (or 80 min of video or audio).
This is equivalent to 580 floppy discs. The price of a CD-R disc
is well below US$0.5, which translates to less than 0.1 cents per
MB of storage!
High
Capacity
One CD-R disc can store information equivalent to hundreds
of written pages. This is cheaper than sending information via
electronic means or on paper. Unlike magnetic disks, data recorded
on CD-R discs are not affected by magnetic fields. Therefore,
no more worries of magnetic sources corrupting data during distribution.
The relatively low cost and large capacity of CD-R discs means
it is an ideal medium for distributing small volumes of software.
This is more cost effective than pressed CD-ROMs.
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Long
Storage Life
A recorded CD-R is like a pressed CD. Stored information cannot
be erased or altered. With proper use and handling, a CD-R disc
can last for decades. In fact, it is estimated that the lifetime
of a CD-R disc is around 100 years! Making CD-R an ideal media
for archiving important data and documents.
Fast
Data Access
Unlike magnetic tape, data recorded on CD-R discs can be randomly
accessed. Therefore, accessing backup data recorded on a CD-R
disc is much faster and more convenient than tape.
Compatibility
A recorded CD-R disc can be read by any CD-ROM drive. Since
CD-ROM drives are virtually standard equipment in PCs nowadays,
therefore, one can access data recorded on a CD-R with virtually
any PC.
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